6mm Nodule

Hi,

I was just told that a 6mm nodule was found on my CT Scan, what does this mean? and should this be something to be afraid of.

[National Jewish Health]

A 6mm nodule is quite a small nodule and the smaller a nodule, the more likely it is to be benign.  The overwhelming number of nodules this size are a residual of past infection and are of no consequence.  Should you be concerned?  The answer is, not at all concerned if you are under age 30 to 35 and a non-smoker.  More concerned but not greatly concerned if you are a long time cigarette smoker and age 55 or older.  Less concerned if you live in a geographical area where such post-fungal infection nodules are common such as the midwest and southwest.

Bottom line is that the assessment of a nodule must take into account many demographic factors, exposures, and physical characteristics of the nodule, in addition to size.  Review of previous chest x-rays/CT scans for comparison is very important.  Stability or lack of change of a nodule for 2 years or more is considered strong evidence of its being non-malignant.

You should discuss this with your doctor, for further clarification, but this nodule would generally be of little concern.  If there is any doubt a CT scan limited to the area of the nodule in 6 months or so would be reasonable.

[kim6116]

A related discussion, lung nodules was started.